<template>
  <div>hello world</div>
</template>

<script>
export default {
  data() {
    return {
      key: value
    }
  },
  props: {
    propName: {
      type: Number,
      default: 123
    }
  },
  mounted() {},
  watch: {
    data(newValue, oldValue) {}
  }
}
</script>

<style scoped></style>
